"(Za)upam si" project ("I trust (dare) myself") was designed to address multiple key challenges that young people face, particularly during the COVID-19 pandemic. Our primary objectives included efforts to improve the mental health of young people, destigmatize mental health, and promote systemic changes in the field of youth mental health in Slovenia. The most important goal of the project was to address the consequences brought about by the COVID-19 pandemic in terms of young people's mental health. Numerous studies have shown a significant increase in mental distress among young people during the pandemic. Social isolation, school closures, and the transition to remote learning posed additional challenges, especially for young people from vulnerable social groups (OECD, 2020). Often, waiting times for mental health care were exceptionally long, increasing the need for alternative sources of support for young people in distress. Additionally, changes in daily routines, concerns about infection, and the inability to access regular support resources led to increased psychological symptoms such as depression, anxiety, loneliness, and irritability. Due to altered daily routines, exposure to more stressors, and in some cases, increased exposure to family violence, we identified the need to offer young people additional sources of help and psychological support to strengthen their protective factors. The second key objective of the project was to combat the stigma associated with mental health. Stigmatization of mental health issues remains one of the major barriers to seeking help among individuals facing these issues. Young people are particularly vulnerable to prejudices, misconceptions, and stigma surrounding mental health. This not only limits their help-seeking behavior but can also lead to self-stigmatization, where young people develop a negative self-image and avoid seeking help. Stigmatization of mental health is also reflected in policy, where young people often faced accusations related to the spread of the COVID-19 virus. With the "(Za)upam si" project, we aimed to change this paradigm and raise awareness about the importance of breaking the stigma surrounding mental health. The third key objective of the project was to promote systemic changes in the field of youth mental health in Slovenia. We aimed to influence policymakers and introduce necessary changes in the youth mental health system. Our target group primarily consisted of young people from vulnerable social groups who often could not, did not know how to, or did not dare to seek help when experiencing mental distress. Our activities included various initiatives in which young people participated in shaping policies, addressing decision-makers, and enhancing their civic competences. We also directly communicated with decision-makers, including the National Institute of Public Health, the Ministry of Labor, Family, Social Affairs, and Equal Opportunities, and the Ministry of Health, highlighting the need for systemic changes in youth mental health. The "(Za)upam si" project represented a comprehensive approach to improving the mental health of young people in Slovenia. We aimed to achieve our goals by combining awareness-raising campaigns, psychological support, and advocacy for policy changes.